Commit Graph

60284 Commits

Author SHA1 Message Date
Xiao Guangrong 4f0226482d KVM: MMU: trace mmio page fault
Add tracepoints to trace mmio page fault

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24 11:50:41 +03:00
Xiao Guangrong ce88decffd KVM: MMU: mmio page fault support
The idea is from Avi:

| We could cache the result of a miss in an spte by using a reserved bit, and
| checking the page fault error code (or seeing if we get an ept violation or
| ept misconfiguration), so if we get repeated mmio on a page, we don't need to
| search the slot list/tree.
| (https://lkml.org/lkml/2011/2/22/221)

When the page fault is caused by mmio, we cache the info in the shadow page
table, and also set the reserved bits in the shadow page table, so if the mmio
is caused again, we can quickly identify it and emulate it directly

Searching mmio gfn in memslots is heavy since we need to walk all memeslots, it
can be reduced by this feature, and also avoid walking guest page table for
soft mmu.

[jan: fix operator precedence issue]

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24 11:50:40 +03:00
Xiao Guangrong dd3bfd59db KVM: MMU: reorganize struct kvm_shadow_walk_iterator
Reorganize it for good using the cache

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24 11:50:39 +03:00
Xiao Guangrong c2a2ac2b56 KVM: MMU: lockless walking shadow page table
Use rcu to protect shadow pages table to be freed, so we can safely walk it,
it should run fastly and is needed by mmio page fault

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24 11:50:38 +03:00
Xiao Guangrong 603e0651cf KVM: MMU: do not need atomicly to set/clear spte
Now, the spte is just from nonprsent to present or present to nonprsent, so
we can use some trick to set/clear spte non-atomicly as linux kernel does

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24 11:50:37 +03:00
Xiao Guangrong 1df9f2dc39 KVM: MMU: introduce the rules to modify shadow page table
Introduce some interfaces to modify spte as linux kernel does:
- mmu_spte_clear_track_bits, it set the spte from present to nonpresent, and
  track the stat bits(accessed/dirty) of spte
- mmu_spte_clear_no_track, the same as mmu_spte_clear_track_bits except
  tracking the stat bits
- mmu_spte_set, set spte from nonpresent to present
- mmu_spte_update, only update the stat bits

Now, it does not allowed to set spte from present to present, later, we can
drop the atomicly opration for X86_32 host, and it is the preparing work to
get spte on X86_32 host out of the mmu lock

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24 11:50:36 +03:00
Xiao Guangrong d7c55201e6 KVM: MMU: abstract some functions to handle fault pfn
Introduce handle_abnormal_pfn to handle fault pfn on page fault path,
introduce mmu_invalid_pfn to handle fault pfn on prefetch path

It is the preparing work for mmio page fault support

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24 11:50:35 +03:00
Xiao Guangrong fce92dce79 KVM: MMU: filter out the mmio pfn from the fault pfn
If the page fault is caused by mmio, the gfn can not be found in memslots, and
'bad_pfn' is returned on gfn_to_hva path, so we can use 'bad_pfn' to identify
the mmio page fault.
And, to clarify the meaning of mmio pfn, we return fault page instead of bad
page when the gfn is not allowd to prefetch

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24 11:50:34 +03:00
Xiao Guangrong c37079586f KVM: MMU: remove bypass_guest_pf
The idea is from Avi:
| Maybe it's time to kill off bypass_guest_pf=1.  It's not as effective as
| it used to be, since unsync pages always use shadow_trap_nonpresent_pte,
| and since we convert between the two nonpresent_ptes during sync and unsync.

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24 11:50:33 +03:00
Xiao Guangrong bd4c86eaa6 KVM: MMU: split kvm_mmu_free_page
Split kvm_mmu_free_page to kvm_mmu_isolate_page and
kvm_mmu_free_page

One is used to remove the page from cache under mmu lock and the other is
used to free page table out of mmu lock

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24 11:50:32 +03:00
Xiao Guangrong aa6bd187af KVM: MMU: count used shadow pages on prepareing path
Move counting used shadow pages from commiting path to preparing path to
reduce tlb flush on some paths

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24 11:50:31 +03:00
Xiao Guangrong b90a0e6c81 KVM: MMU: rename 'pt_write' to 'emulate'
If 'pt_write' is true, we need to emulate the fault. And in later patch, we
need to emulate the fault even though it is not a pt_write event, so rename
it to better fit the meaning

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24 11:50:30 +03:00
Xiao Guangrong b36c7a7c10 KVM: MMU: cleanup for FNAME(fetch)
gw->pte_access is the final access permission, since it is unified with
gw->pt_access when we walked guest page table:

FNAME(walk_addr_generic):
	pte_access = pt_access & FNAME(gpte_access)(vcpu, pte, true);

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24 11:50:29 +03:00
Xiao Guangrong 640d9b0dbe KVM: MMU: optimize to handle dirty bit
If dirty bit is not set, we can make the pte access read-only to avoid handing
dirty bit everywhere

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24 11:50:27 +03:00
Xiao Guangrong bebb106a5a KVM: MMU: cache mmio info on page fault path
If the page fault is caused by mmio, we can cache the mmio info, later, we do
not need to walk guest page table and quickly know it is a mmio fault while we
emulate the mmio instruction

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24 11:50:26 +03:00
Xiao Guangrong af7cc7d1ee KVM: x86: introduce vcpu_mmio_gva_to_gpa to cleanup the code
Introduce vcpu_mmio_gva_to_gpa to translate the gva to gpa, we can use it
to cleanup the code between read emulation and write emulation

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24 11:50:25 +03:00
Xiao Guangrong ffb61bb3bc KVM: MMU: do not update slot bitmap if spte is nonpresent
Set slot bitmap only if the spte is present

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24 11:50:24 +03:00
Xiao Guangrong 052331bea3 KVM: MMU: fix walking shadow page table
Properly check the last mapping, and do not walk to the next level if last spte
is met

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-07-24 11:50:23 +03:00
Glauber Costa d910f5c106 KVM guest: KVM Steal time registration
This patch implements the kvm bits of the steal time infrastructure.
The most important part of it, is the steal time clock. It is an
continuous clock that shows the accumulated amount of steal time
since vcpu creation. It is supposed to survive cpu offlining/onlining.

[marcelo: fix build with CONFIG_KVM_GUEST=n]

Signed-off-by: Glauber Costa <glommer@redhat.com>
Acked-by: Rik van Riel <riel@redhat.com>
Tested-by: Eric B Munson <emunson@mgebm.net>
CC: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
CC: Peter Zijlstra <peterz@infradead.org>
CC: Avi Kivity <avi@redhat.com>
CC: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-07-24 11:49:36 +03:00
Martin Schwidefsky 73b7d40ff1 [S390] use siginfo for sigtrap signals
Provide additional information on SIGTRAP by using a sig_info signal.
Use TRAP_BRKPT for breakpoints via illegal operation and TRAP_HWBKPT
for breakpoints via program event recording. Provide the address of
the instruction that caused the breakpoint via si_addr.
While we are at it get rid of tracehook_consider_fatal_signal.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-07-24 10:48:23 +02:00
Christian Ehrhardt 8bb3a2ebcf [S390] kvm: make sigp emerg smp capable
SIGP emerg needs to pass the source vpu adress into __LC_CPU_ADDRESS of the
target guest.

Signed-off-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-07-24 10:48:22 +02:00
Jan Glauber cadfce7277 [S390] disable cpu measurement alerts on a dying cpu
The cpu measurement alerts that are used for instance by oprofile
for hardware sampling are not turned off on a cpu that is going
offline. Add the appropriate control register bit that should be
disabled to the list.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-07-24 10:48:22 +02:00
Martin Schwidefsky c76e70d378 [S390] initial cr0 bits
Remove outdated bits from the initial cr0 register.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-07-24 10:48:22 +02:00
Martin Schwidefsky 5beab99100 [S390] iucv cr0 enablement bit
Do not set the cr0 enablement bit for iucv by default in head[31|64].S,
move the enablement to iucv_init in the iucv base layer.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-07-24 10:48:22 +02:00
Jan Glauber 89c9b66b10 [S390] race safe external interrupt registration
The (un-)register_external_interrupt functions are not race safe if
more than one interrupt handler is added or deleted for an external
interrupt concurrently.

Make the registration / unregistration of external interrupts race safe
by using RCU and a spinlock. RCU is used to avoid a performance penalty
in the external interrupt handler, the register and unregister functions
are protected by the spinlock and are not performance critical.
call_rcu must be used since the SCLP driver uses the interface with
IRQs disabled. Also use the generic list implementation rather than
homebrewn list code.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-07-24 10:48:22 +02:00
Martin Schwidefsky fdb204d1a7 [S390] cleanup program check handler prototypes
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-07-24 10:48:21 +02:00
Carsten Otte f7850c9288 [S390] remove kvm mmu reload on s390
This patch removes the mmu reload logic for kvm on s390. Via Martin's
new gmap interface, we can safely add or remove memory slots while
guest CPUs are in-flight. Thus, the mmu reload logic is not needed
anymore.

Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-07-24 10:48:21 +02:00
Carsten Otte 092670cd90 [S390] Use gmap translation for accessing guest memory
This patch removes kvm-s390 internal assumption of a linear mapping
of guest address space to user space. Previously, guest memory was
translated to user addresses using a fixed offset (gmsor). The new
code uses gmap_fault to resolve guest addresses.

Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-07-24 10:48:21 +02:00
Carsten Otte 598841ca99 [S390] use gmap address spaces for kvm guest images
This patch switches kvm from using (Qemu's) user address space to
Martin's gmap address space. This way QEMU does not have to use a
linker script in order to fit large guests at low addresses in its
address space.

Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-07-24 10:48:21 +02:00
Martin Schwidefsky e5992f2e6c [S390] kvm guest address space mapping
Add code that allows KVM to control the virtual memory layout that
is seen by a guest. The guest address space uses a second page table
that shares the last level pte-tables with the process page table.
If a page is unmapped from the process page table it is automatically
unmapped from the guest page table as well.

The guest address space mapping starts out empty, KVM can map any
individual 1MB segments from the process virtual memory to any 1MB
aligned location in the guest virtual memory. If a target segment in
the process virtual memory does not exist or is unmapped while a
guest mapping exists the desired target address is stored as an
invalid segment table entry in the guest page table.
The population of the guest page table is fault driven.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-07-24 10:48:21 +02:00
Jan Glauber 144d634a21 [S390] fix s390 assembler code alignments
The alignment is missing for various global symbols in s390 assembly code.
With a recent gcc and an instruction like stgrl this can lead to a
specification exception if the instruction uses such a mis-aligned address.

Specify the alignment explicitely and while add it define __ALIGN for s390
and use the ENTRY define to save some lines of code.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-07-24 10:48:21 +02:00
Martin Schwidefsky 603d1a50ac [S390] move sie code to entry.S
The entry to / exit from sie has subtle dependencies to the first level
interrupt handler. Move the sie assembler code to entry64.S and replace
the SIE_HOOK callback with a test and the new _TIF_SIE bit.
In addition this patch fixes several problems in regard to the check for
the_TIF_EXIT_SIE bits. The old code checked the TIF bits before executing
the interrupt handler and it only modified the instruction address if it
pointed directly to the sie instruction. In both cases it could miss
a TIF bit that normally would cause an exit from the guest and would
reenter the guest context.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-07-24 10:48:21 +02:00
Christian Borntraeger bb25b9ba3e [S390] kvm: handle tprot intercepts
When running a kvm guest we can get intercepts for tprot, if the host
page table is read-only or not populated. This patch implements the
most common case (linux memory detection).
This also allows host copy on write for guest memory on newer systems.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-07-24 10:48:20 +02:00
Steven Rostedt f433c4aec9 [S390] irqs: Do not trace arch_local_{*,irq_*} functions
Do not trace arch_local_save_flags(), arch_local_irq_*() and friends.
Although they are marked inline, gcc may still make a function out of
them and add it to the pool of functions that are traced by the function
tracer. This can cause undesirable results (kernel panic, triple faults,
etc).

Add the notrace notation to prevent them from ever being traced.

Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-07-24 10:48:00 +02:00
Linus Torvalds 6d6be43d4d Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin: (43 commits)
  Blackfin: spi-docs: further clarify GPIO CS behavior with various modes
  Blackfin: boards: fix pcm device name
  Blackfin: SMP: punt unused atomic_test_mask helper
  Blackfin: irqs: do not trace arch_local_{*,irq_*} functions
  Blackfin: bf526: restrict reboot workaround to 0.0 silicon
  Blackfin: bf51x: fix alternative portmux options
  Blackfin: bf54x: fix GPIO resume code
  Blackfin: dpmc: optimize SDRAM programming slightly
  Blackfin: dpmc: don't save/restore scratch registers
  Blackfin: bf538: pull gpio/port logic out of core hibernate paths
  Blackfin: dpmc: optimize hibernate/resume path
  Blackfin: dpmc: do not save/restore EVT0/EVT1/EVT4 when hibernating
  Blackfin: dpmc: relocate hibernate helper macros
  Blackfin: dpmc: omit RETE/RETN when hibernating
  Blackfin: dpmc: optimize SIC_IWR programming a little
  Blackfin: gpio/ints: generalize pint logic
  Blackfin: dpmc: bind to MMR names and not CPUs
  Blackfin: debug-mmrs: generalize pint logic
  Blackfin: bf54x: switch to common pint MMR struct
  Blackfin: bf54x: tweak MMR pint names
  ...
2011-07-23 14:05:44 -07:00
Linus Torvalds b4db920c7f Merge branches 'x86-detect-hyper-for-linus', 'x86-fpu-for-linus', 'x86-kexec-for-linus', 'x86-platform-for-linus', 'x86-quirks-for-linus', 'x86-tsc-for-linus' and 'x86-smpboot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-detect-hyper-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, hyper: Change hypervisor detection order

* 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86-32, fpu: Fix DNA exception during check_fpu()

* 'x86-kexec-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  kexec, x86: Fix incorrect jump back address if not preserving context

* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, config: Introduce an INTEL_MID configuration

* 'x86-quirks-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, quirks: Use pci_dev->revision

* 'x86-tsc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: tsc: Remove unneeded DMI-based blacklisting

* 'x86-smpboot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, boot: Wait for boot cpu to show up if nr_cpus limit is about to hit
2011-07-23 10:38:21 -07:00
Linus Torvalds 7080d30676 Merge branch 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, build: Do not set the root_dev field in bzImage
2011-07-23 10:36:09 -07:00
Linus Torvalds 148a7b1725 Merge branch 'x86-atomic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-atomic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: Add support for cmpxchg_double
2011-07-23 10:35:43 -07:00
Linus Torvalds 9d0715630e Merge branch 'timers-clocksource-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-clocksource-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  clocksource: apb: Share APB timer code with other platforms
2011-07-23 10:34:47 -07:00
Linus Torvalds c0c463d34a Merge branches 'x86-urgent-for-linus', 'core-debug-for-linus', 'irq-core-for-linus' and 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  um: Make rwsem.S depend on CONFIG_RWSEM_XCHGADD_ALGORITHM

* 'core-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  debug: Make CONFIG_EXPERT select CONFIG_DEBUG_KERNEL to unhide debug options

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  genirq: Remove unused CHECK_IRQ_PER_CPU()

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf tools, x86: Fix 32-bit compile on 64-bit system
2011-07-23 10:33:08 -07:00
Ohad Ben-Cohen e72542191c virtio: expose for non-virtualization users too
virtio has been so far used only in the context of virtualization,
and the virtio Kconfig was sourced directly by the relevant arch
Kconfigs when VIRTUALIZATION was selected.

Now that we start using virtio for inter-processor communications,
we need to source the virtio Kconfig outside of the virtualization
scope too.

Moreover, some architectures might use virtio for both virtualization
and inter-processor communications, so directly sourcing virtio
might yield unexpected results due to conflicting selections.

The simple solution offered by this patch is to always source virtio's
Kconfig in drivers/Kconfig, and remove it from the appropriate arch
Kconfigs. Additionally, a virtio menu entry has been added so virtio
drivers don't show up in the general drivers menu.

This way anyone can use virtio, though it's arguably less accessible
(and neat!) for virtualization users now.

Note: some architectures (mips and sh) seem to have a VIRTUALIZATION
menu merely for sourcing virtio's Kconfig, so that menu is removed too.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-07-23 16:20:30 +09:30
Scott Jiang 2b6678c552 Blackfin: boards: fix pcm device name
The pcm driver name has been changed, but the device name has not.

Signed-off-by: Scott Jiang <scott.jiang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:34 -04:00
Mike Frysinger 6ebc2bb92a Blackfin: SMP: punt unused atomic_test_mask helper
No one uses this func, so just punt it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:34 -04:00
Steven Rostedt a2de3f79b1 Blackfin: irqs: do not trace arch_local_{*,irq_*} functions
Do not trace arch_local_save_flags(), arch_local_irq_*() and friends.
Although they are marked inline, gcc may still make a function out of
them and add it to the pool of functions that are traced by the function
tracer. This can cause undesirable results (kernel panic, triple faults,
etc).

Add the notrace notation to prevent them from ever being traced.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:33 -04:00
Mike Frysinger b0d3dc1291 Blackfin: bf526: restrict reboot workaround to 0.0 silicon
The bug in the BF526 rom when doing a software reset exists only in older
silicon versions, so don't clear SWRST on newer parts.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:33 -04:00
Mike Frysinger 65cd3b5362 Blackfin: bf51x: fix alternative portmux options
The BF51x's alternative portmux Kconfig options were copy & pasted from
the BF52x, but never tweaked to reflect it.  So drop the old options as
they were never used (and were simply wrong), and add the BF51x specific
pieces to the Kconfig and header.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:32 -04:00
Mike Frysinger fdfb0becea Blackfin: bf54x: fix GPIO resume code
Back in commit c03c2a8734, we fixed logic in the non-bf54x
GPIO resume code to set the data levels properly before the direction
to avoid spurious line glitches.  But we missed the bf54x code paths.
So add the same fix there.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:32 -04:00
Mike Frysinger 9e770f7780 Blackfin: dpmc: optimize SDRAM programming slightly
No need to reload these registers constantly since they're always
available (we're not making any function calls in between).

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:31 -04:00
Mike Frysinger da31d6fb46 Blackfin: dpmc: don't save/restore scratch registers
The Blackfin C ABI says we do not need to save/restore R0-R3 and P0-P2
as they are available as scratch registers.  So don't bother.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:31 -04:00
Mike Frysinger 9466a0510a Blackfin: bf538: pull gpio/port logic out of core hibernate paths
Re-architect how we save/restore the gpio/port logic that only pertains
to bf538/bf539 parts by pulling it out of the core code paths and pushing
it out to bf538-specific locations.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:30 -04:00
Mike Frysinger eed7b83658 Blackfin: dpmc: optimize hibernate/resume path
The current save logic used in hibernation is to do a MMR load (base +
offset) into a register, and then push that onto the stack.  Then when
restoring, pop off the stack into a register followed by a MMR store
(base + offset).  These use plenty of 32bit insns rather than 16bit,
are pretty long winded, and full of pipeline bubbles.

So, by taking advantage of MMRs that are contiguous, the multi-register
push/pop insn, and register abuse, we can shrink this code considerably.

When saving, the new logic does a lot of loads into the data and pointer
registers before executing a single multi-register push insn.  Then when
restoring, we do a single multi-register pop insn followed by a lot of
stores.  Overall, this allows us to cut the insn count by ~30%, the code
size by ~45%, and drastically reduce the register hazards that trigger
bubbles in the pipeline.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:29 -04:00
Mike Frysinger d7228e7eb9 Blackfin: dpmc: do not save/restore EVT0/EVT1/EVT4 when hibernating
EVT0 is for emulation, EVT1 is for reset, and EVT4 is the "global int
disable" region.  None of these are used by software (or even hardware),
so don't bother saving/restoring them when we hibernate since nothing
ever uses these in Linux (the only thing they would be useful for is
core-memory scratch, but that's just crazy talk).

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:29 -04:00
Mike Frysinger 584ecbaa25 Blackfin: dpmc: relocate hibernate helper macros
This defines only get used in the hibernate code, so remove them from the
global dpmc header as no one else cares.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:28 -04:00
Mike Frysinger 429e257ea3 Blackfin: dpmc: omit RETE/RETN when hibernating
The RETE/RETN registers are only used in emulation(JTAG) and NMI nodes,
or as scratch registers, neither of which need to be saved/restored as
this code doesn't execute at those core event levels.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:28 -04:00
Mike Frysinger 4705a25c06 Blackfin: dpmc: optimize SIC_IWR programming a little
For parts with more than one SIC_IWR, we can optimize the writing
a little bit using better Blackfin insns.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:27 -04:00
Mike Frysinger 01f8e34c98 Blackfin: gpio/ints: generalize pint logic
Have the logic that uses peripheral interrupt blocks key off of pint
defines rather than CPU names so that things are generalized across
families.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:27 -04:00
Mike Frysinger 85c2737ae7 Blackfin: dpmc: bind to MMR names and not CPUs
Have the code work off of MMR names rather than CPU defines so there is
less code to tweak in the future with new parts.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:26 -04:00
Mike Frysinger 0a7e5413ca Blackfin: debug-mmrs: generalize pint logic
Don't bind the code to specific CPU defines.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:26 -04:00
Mike Frysinger 82ed5f73ed Blackfin: bf54x: switch to common pint MMR struct
We have a struct in the headers describing the register layout, so
drop the local duplicate one.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:25 -04:00
Mike Frysinger b69c920cb1 Blackfin: bf54x: tweak MMR pint names
The hardware block uses the name "request" rather than "irq", so update
the struct accordingly.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:25 -04:00
Mike Frysinger b0759a4d23 Blackfin: bf54x: constify pint register array
The array of pointers to register blocks never changes, so constify it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:24 -04:00
Mike Frysinger 1a9e5bfbd4 Blackfin: gpio: punt unused GPIO_# defines
These defines don't accomplish much as GPIO_# is the same thing as #.
Each CPU already provides helpful symbolic defines like GPIO_<PIN>
which everyone uses, so just punt these # ones.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:24 -04:00
Mike Frysinger 969564508d Blackfin: convert unicode space gremlins
Not sure how these guys slipped in, but they're annoying me.
So bring these unicode space gremlins down to earth to normal
ascii spaces.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:23 -04:00
Mike Frysinger 006669ec21 Blackfin: pwm: implement linux/pwm.h API
For now, this only supports gptimers.  Support for dedicated PWM devices
as found on newer parts to come.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:23 -04:00
Mike Frysinger e1b5596533 Blackfin: gptimers: add enable/disable by timer id
The API is geared around timer ids, except for the act of enabling
and disabling timers.  So add a small helper to fill out the gap.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:22 -04:00
Steven Miao 353470cc50 Blackfin: make sure percpu section is aligned in XIP builds
The alignment is normally handled by PERCPU(), but we need to do it
ourselves in the XIP build due to the custom layout.

Signed-off-by: Steven Miao <realmz6@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:22 -04:00
Mike Frysinger 997f95e190 Blackfin: gptimers: use bfin read/write helpers
Use proper helper macros for reading/writing the MMRs rather than
volatile markings on the struct.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:21 -04:00
Mike Frysinger 24a6b91f69 Blackfin: gptimers: use register structs from common header
Now that asm/gptimers.h has the hardware register struct layout, there's
no need to duplicate things locally.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:21 -04:00
Mike Frysinger af459864b3 Blackfin: debug-mmrs: use new gptimer_group layout to simplify code
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:20 -04:00
Mike Frysinger 94674b15df Blackfin: debug-mmrs: prevent macro arg from expanding
Passing a non-simple expression in as the addr arg could incorrectly
apply the pointer cast resulting in misbehavior.  Add proper paren.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:20 -04:00
Mike Frysinger 7595ac0711 Blackfin: gptimers: add group structure for hardware register layout
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:19 -04:00
Mathias Krause a64b384818 Blackfin: exec: remove redundant set_fs(USER_DS)
The address limit is already set in flush_old_exec() so this
set_fs(USER_DS) is redundant.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:18 -04:00
Mike Frysinger 979365ba4e Blackfin: update anomaly lists to latest public info
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:18 -04:00
Mike Frysinger 4e12b08b72 Blackfin: bf561-ezkit: change parallel flash from M to Y in defconfig
These flashes are always on the board, so might as well enable them by
default rather than a module.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:17 -04:00
Mike Frysinger e14062563c Blackfin: debug-mmrs: disable PERIPHERAL_MAP for IMDMA channels
The documentation for the IMDMA channels appears to be incorrect.
These DMA blocks don't actually have PERIPHERAL_MAP MMRs for us
to access.  Attempts to do so lead to system mmr hardware errors.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:18:17 -04:00
Mike Frysinger ef0531b2e4 Blackfin: debug-mmrs: fix typo in single dmac setup
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:10:44 -04:00
Mike Frysinger 50f92aa334 Blackfin: convert to asm-generic/mutex-dec.h for all systems
The Blackfin mutex.h is merely a copy of an older asm-generic/mutex-dec.h,
so punt it and just use the common one directly.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:10:43 -04:00
Mike Frysinger fb1d9be596 Blackfin: optimize double fault boot checking
This moves the double fault data used at boot time into a single struct
which can then easily be addressed with indexed loads rather than having
to explicitly load multiple addresses.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:10:43 -04:00
Mike Frysinger 072a5cff2f Blackfin: time: replace magic numbers with defines
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:10:42 -04:00
Mike Frysinger b648072d3e Blackfin: SMP: optimize start up code a bit
This just imports all of the optimization work done in the
common startup code.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:10:42 -04:00
Mike Frysinger 2f7d63f909 Blackfin: boards: clean up redundant/dead spi resources
The default for the Blackfin SPI driver is 8 bits and dma disabled,
so many of the bfin5xx_spi_chip resources are redundant.  So punt
those parts.

Further, drivers should themselves be declaring 16 bit transfers,
so for those that do, and for the ones which no longer do 16 bit
transfers, drop the bfin5xx_spi_chip resources.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:10:41 -04:00
Mike Frysinger 9be8631b8a Blackfin: net2272: move pin setup to boards files
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 01:10:41 -04:00
Mike Frysinger c6cb13f9fe Blackfin: convert to kbuild asm-generic support
No need for one line header stubs.  Just declare it in Kbuild.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-23 00:41:23 -04:00
Linus Torvalds bbd9d6f7fb Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (107 commits)
  vfs: use ERR_CAST for err-ptr tossing in lookup_instantiate_filp
  isofs: Remove global fs lock
  jffs2: fix IN_DELETE_SELF on overwriting rename() killing a directory
  fix IN_DELETE_SELF on overwriting rename() on ramfs et.al.
  mm/truncate.c: fix build for CONFIG_BLOCK not enabled
  fs:update the NOTE of the file_operations structure
  Remove dead code in dget_parent()
  AFS: Fix silly characters in a comment
  switch d_add_ci() to d_splice_alias() in "found negative" case as well
  simplify gfs2_lookup()
  jfs_lookup(): don't bother with . or ..
  get rid of useless dget_parent() in btrfs rename() and link()
  get rid of useless dget_parent() in fs/btrfs/ioctl.c
  fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers
  drivers: fix up various ->llseek() implementations
  fs: handle SEEK_HOLE/SEEK_DATA properly in all fs's that define their own llseek
  Ext4: handle SEEK_HOLE/SEEK_DATA generically
  Btrfs: implement our own ->llseek
  fs: add SEEK_HOLE and SEEK_DATA flags
  reiserfs: make reiserfs default to barrier=flush
  ...

Fix up trivial conflicts in fs/xfs/linux-2.6/xfs_super.c due to the new
shrinker callout for the inode cache, that clashed with the xfs code to
start the periodic workers later.
2011-07-22 19:02:39 -07:00
Linus Torvalds 8e204874db Merge branch 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86-64, vdso: Do not allocate memory for the vDSO
  clocksource: Change __ARCH_HAS_CLOCKSOURCE_DATA to a CONFIG option
  x86, vdso: Drop now wrong comment
  Document the vDSO and add a reference parser
  ia64: Replace clocksource.fsys_mmio with generic arch data
  x86-64: Move vread_tsc and vread_hpet into the vDSO
  clocksource: Replace vread with generic arch data
  x86-64: Add --no-undefined to vDSO build
  x86-64: Allow alternative patching in the vDSO
  x86: Make alternative instruction pointers relative
  x86-64: Improve vsyscall emulation CS and RIP handling
  x86-64: Emulate legacy vsyscalls
  x86-64: Fill unused parts of the vsyscall page with 0xcc
  x86-64: Remove vsyscall number 3 (venosys)
  x86-64: Map the HPET NX
  x86-64: Remove kernel.vsyscall64 sysctl
  x86-64: Give vvars their own page
  x86-64: Document some of entry_64.S
  x86-64: Fix alignment of jiffies variable
2011-07-22 17:05:15 -07:00
Linus Torvalds 3e0b8df79d Merge branch 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, UV: Correct UV2 BAU destination timeout
  x86, UV: Correct failed topology memory leak
  x86, UV: Remove cpumask_t from the stack
  x86, UV: Rename hubmask to pnmask
  x86, UV: Correct reset_with_ipi()
  x86, UV: Allow for non-consecutive sockets
  x86, UV: Inline header file functions
  x86, UV: Fix smp_processor_id() use in a preemptable region
  x66, UV: Enable 64-bit ACPI MFCG support for SGI UV2 platform
  x86, UV: Clean up uv_mmrs.h
2011-07-22 17:04:55 -07:00
Linus Torvalds 8051207959 Merge branch 'x86-signal-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-signal-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: Kill handle_signal()->set_fs()
  x86, do_signal: Simplify the TS_RESTORE_SIGMASK logic
  x86, signals: Convert the X86_32 code to use set_current_blocked()
  x86, signals: Convert the IA32_EMULATION code to use set_current_blocked()
2011-07-22 17:04:32 -07:00
Linus Torvalds 9e39264ed4 Merge branch 'x86-numa-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-numa-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, numa: Implement pfn -> nid mapping granularity check
  x86, mm: s/PAGES_PER_ELEMENT/PAGES_PER_SECTION/
2011-07-22 17:04:18 -07:00
Linus Torvalds dc43d9fa73 Merge branch 'x86-mtrr-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-mtrr-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, mtrr: Use pci_dev->revision
  x86, mtrr: use stop_machine APIs for doing MTRR rendezvous
  stop_machine: implement stop_machine_from_inactive_cpu()
  stop_machine: reorganize stop_cpus() implementation
  x86, mtrr: lock stop machine during MTRR rendezvous sequence
2011-07-22 17:04:04 -07:00
Linus Torvalds 80775068db Merge branch 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, microcode, AMD: Fix section header size check
  x86, microcode, AMD: Correct buf references
2011-07-22 17:03:52 -07:00
Linus Torvalds 7c6582b28a Merge branch 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, mce: Use mce_sysdev_ prefix to group functions
  x86, mce: Use mce_chrdev_ prefix to group functions
  x86, mce: Cleanup mce_read()
  x86, mce: Cleanup mce_create()/remove_device()
  x86, mce: Check the result of ancient_init()
  x86, mce: Introduce mce_gather_info()
  x86, mce: Replace MCM_ with MCI_MISC_
  x86, mce: Replace MCE_SELF_VECTOR by irq_work
  x86, mce, severity: Clean up trivial coding style problems
  x86, mce, severity: Cleanup severity table
  x86, mce, severity: Make formatting a bit more readable
  x86, mce, severity: Fix two severities table signatures
2011-07-22 17:03:40 -07:00
Linus Torvalds 227ad9bc07 Merge branch 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, efi: Properly pre-initialize table pointers
  x86, efi: Add infrastructure for UEFI 2.0 runtime services
  x86, efi: Fix argument types for SetVariable()
2011-07-22 17:03:14 -07:00
Linus Torvalds 35b004cce1 Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, intel, power: Correct the MSR_IA32_ENERGY_PERF_BIAS message
  x86, msr: Fix typo in ENERGY_PERF_BIAS_POWERSAVE
  x86, intel, power: Initialize MSR_IA32_ENERGY_PERF_BIAS
2011-07-22 17:02:54 -07:00
Linus Torvalds 0a613b647b Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, smpboot: Mark the names[] array in __inquire_remote_apic() as const
  x86: Convert vmalloc()+memset() to vzalloc()
2011-07-22 17:02:38 -07:00
Linus Torvalds eb47418dc5 Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: Fix write lock scalability 64-bit issue
  x86: Unify rwsem assembly implementation
  x86: Unify rwlock assembly implementation
  x86, asm: Fix binutils 2.16 issue with __USER32_CS
  x86, asm: Cleanup thunk_64.S
  x86, asm: Flip RESTORE_ARGS arguments logic
  x86, asm: Flip SAVE_ARGS arguments logic
  x86, asm: Thin down SAVE/RESTORE_* asm macros
2011-07-22 17:02:24 -07:00
Linus Torvalds 2c9e88a108 Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, ioapic: Print IR_IO_APIC_route_entry when IR is enabled
  x86, ioapic: Print IRTE when IR is enabled
  x86, x2apic: Preserve high 32-bits of IA32_APIC_BASE MSR
  x86, ioapic: Also print Dest field
  x86, ioapic: Format clean up for IOAPIC output
  x86: print APIC data a little later during boot
2011-07-22 17:02:07 -07:00
Linus Torvalds 52de84f3f3 Merge branch 'timers-rtc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-rtc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: Serialize EFI time accesses on rtc_lock
  x86: Serialize SMP bootup CMOS accesses on rtc_lock
  rtc: stmp3xxx: Remove UIE handlers
  rtc: stmp3xxx: Get rid of mach-specific accessors
  rtc: stmp3xxx: Initialize drvdata before registering device
  rtc: stmp3xxx: Port stmp-functions to mxs-equivalents
  rtc: stmp3xxx: Restore register definitions
  rtc: vt8500: Use define instead of hardcoded value for status bit
2011-07-22 16:52:39 -07:00
Linus Torvalds a99a7d1436 Merge branch 'timers-cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  mips: Fix i8253 clockevent fallout
  i8253: Cleanup outb/inb magic
  arm: Footbridge: Use common i8253 clockevent
  mips: Use common i8253 clockevent
  x86: Use common i8253 clockevent
  i8253: Create common clockevent implementation
  i8253: Export i8253_lock unconditionally
  pcpskr: MIPS: Make config dependencies finer grained
  pcspkr: Cleanup Kconfig dependencies
  i8253: Move remaining content and delete asm/i8253.h
  i8253: Consolidate definitions of PIT_LATCH
  x86: i8253: Consolidate definitions of global_clock_event
  i8253: Alpha, PowerPC: Remove unused asm/8253pit.h
  alpha: i8253: Cleanup remaining users of i8253pit.h
  i8253: Remove I8253_LOCK config
  i8253: Make pcsp sound driver use the shared i8253_lock
  i8253: Make pcspkr input driver use the shared i8253_lock
  i8253: Consolidate all kernel definitions of i8253_lock
  i8253: Unify all kernel declarations of i8253_lock
  i8253: Create linux/i8253.h and use it in all 8253 related files
2011-07-22 16:51:56 -07:00
Linus Torvalds bdc7ccfc06 Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (24 commits)
  sched: Cleanup duplicate local variable in [enqueue|dequeue]_task_fair
  sched: Replace use of entity_key()
  sched: Separate group-scheduling code more clearly
  sched: Reorder root_domain to remove 64 bit alignment padding
  sched: Do not attempt to destroy uninitialized rt_bandwidth
  sched: Remove unused function cpu_cfs_rq()
  sched: Fix (harmless) typo 'CONFG_FAIR_GROUP_SCHED'
  sched, cgroup: Optimize load_balance_fair()
  sched: Don't update shares twice on on_rq parent
  sched: update correct entity's runtime in check_preempt_wakeup()
  xtensa: Use generic config PREEMPT definition
  h8300: Use generic config PREEMPT definition
  m32r: Use generic PREEMPT config
  sched: Skip autogroup when looking for all rt sched groups
  sched: Simplify mutex_spin_on_owner()
  sched: Remove rcu_read_lock() from wake_affine()
  sched: Generalize sleep inside spinlock detection
  sched: Make sleeping inside spinlock detection working in !CONFIG_PREEMPT
  sched: Isolate preempt counting in its own config option
  sched: Remove pointless in_atomic() definition check
  ...
2011-07-22 16:45:02 -07:00
Linus Torvalds 4d4abdcb1d Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (123 commits)
  perf: Remove the nmi parameter from the oprofile_perf backend
  x86, perf: Make copy_from_user_nmi() a library function
  perf: Remove perf_event_attr::type check
  x86, perf: P4 PMU - Fix typos in comments and style cleanup
  perf tools: Make test use the preset debugfs path
  perf tools: Add automated tests for events parsing
  perf tools: De-opt the parse_events function
  perf script: Fix display of IP address for non-callchain path
  perf tools: Fix endian conversion reading event attr from file header
  perf tools: Add missing 'node' alias to the hw_cache[] array
  perf probe: Support adding probes on offline kernel modules
  perf probe: Add probed module in front of function
  perf probe: Introduce debuginfo to encapsulate dwarf information
  perf-probe: Move dwarf library routines to dwarf-aux.{c, h}
  perf probe: Remove redundant dwarf functions
  perf probe: Move strtailcmp to string.c
  perf probe: Rename DIE_FIND_CB_FOUND to DIE_FIND_CB_END
  tracing/kprobe: Update symbol reference when loading module
  tracing/kprobes: Support module init function probing
  kprobes: Return -ENOENT if probe point doesn't exist
  ...
2011-07-22 16:44:39 -07:00
Linus Torvalds 0342cbcfce Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  rcu: Fix wrong check in list_splice_init_rcu()
  net,rcu: Convert call_rcu(xt_rateest_free_rcu) to kfree_rcu()
  sysctl,rcu: Convert call_rcu(free_head) to kfree
  vmalloc,rcu: Convert call_rcu(rcu_free_vb) to kfree_rcu()
  vmalloc,rcu: Convert call_rcu(rcu_free_va) to kfree_rcu()
  ipc,rcu: Convert call_rcu(ipc_immediate_free) to kfree_rcu()
  ipc,rcu: Convert call_rcu(free_un) to kfree_rcu()
  security,rcu: Convert call_rcu(sel_netport_free) to kfree_rcu()
  security,rcu: Convert call_rcu(sel_netnode_free) to kfree_rcu()
  ia64,rcu: Convert call_rcu(sn_irq_info_free) to kfree_rcu()
  block,rcu: Convert call_rcu(disk_free_ptbl_rcu_cb) to kfree_rcu()
  scsi,rcu: Convert call_rcu(fc_rport_free_rcu) to kfree_rcu()
  audit_tree,rcu: Convert call_rcu(__put_tree) to kfree_rcu()
  security,rcu: Convert call_rcu(whitelist_item_free) to kfree_rcu()
  md,rcu: Convert call_rcu(free_conf) to kfree_rcu()
2011-07-22 16:44:08 -07:00
Linus Torvalds 6d16d6d9bb Merge branch 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  iommu/core: Fix build with INTR_REMAP=y && CONFIG_DMAR=n
  iommu/amd: Don't use MSI address range for DMA addresses
  iommu/amd: Move missing parts to drivers/iommu
  iommu: Move iommu Kconfig entries to submenu
  x86/ia64: intel-iommu: move to drivers/iommu/
  x86: amd_iommu: move to drivers/iommu/
  msm: iommu: move to drivers/iommu/
  drivers: iommu: move to a dedicated folder
  x86/amd-iommu: Store device alias as dev_data pointer
  x86/amd-iommu: Search for existind dev_data before allocting a new one
  x86/amd-iommu: Allow dev_data->alias to be NULL
  x86/amd-iommu: Use only dev_data in low-level domain attach/detach functions
  x86/amd-iommu: Use only dev_data for dte and iotlb flushing routines
  x86/amd-iommu: Store ATS state in dev_data
  x86/amd-iommu: Store devid in dev_data
  x86/amd-iommu: Introduce global dev_data_list
  x86/amd-iommu: Remove redundant device_flush_dte() calls
  iommu-api: Add missing header file

Fix up trivial conflicts (independent additions close to each other) in
drivers/Makefile and include/linux/pci.h
2011-07-22 16:39:42 -07:00
Linus Torvalds 431bf99d26 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6: (51 commits)
  PM: Improve error code of pm_notifier_call_chain()
  PM: Add "RTC" to PM trace time stamps to avoid confusion
  PM / Suspend: Export suspend_set_ops, suspend_valid_only_mem
  PM / Suspend: Add .suspend_again() callback to suspend_ops
  PM / OPP: Introduce function to free cpufreq table
  ARM / shmobile: Return -EBUSY from A4LC power off if A3RV is active
  PM / Domains: Take .power_off() error code into account
  ARM / shmobile: Use genpd_queue_power_off_work()
  ARM / shmobile: Use pm_genpd_poweroff_unused()
  PM / Domains: Introduce function to power off all unused PM domains
  OMAP: PM: disable idle on suspend for GPIO and UART
  OMAP: PM: omap_device: add API to disable idle on suspend
  OMAP: PM: omap_device: add system PM methods for PM domain handling
  OMAP: PM: omap_device: conditionally use PM domain runtime helpers
  PM / Runtime: Add new helper function: pm_runtime_status_suspended()
  PM / Domains: Queue up power off work only if it is not pending
  PM / Domains: Improve handling of wakeup devices during system suspend
  PM / Domains: Do not restore all devices on power off error
  PM / Domains: Allow callbacks to execute all runtime PM helpers
  PM / Domains: Do not execute device callbacks under locks
  ...
2011-07-22 16:01:57 -07:00
Russell King 3ad55155b2 Merge branch 'devel-stable' into for-next
Conflicts:
	arch/arm/kernel/entry-armv.S
2011-07-22 23:09:07 +01:00
Russell King 06f365acef Merge branches 'btc', 'dma', 'entry', 'fixes', 'linker-layout', 'misc', 'mmci', 'suspend' and 'vfp' into for-next 2011-07-22 23:08:48 +01:00
Linus Torvalds 17413f5acd Merge branch 'for-3.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
* 'for-3.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:
  percpu: Fixup __this_cpu_xchg* operations
2011-07-22 15:07:35 -07:00
Linus Torvalds 8209f53d79 Merge branch 'ptrace' of git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc
* 'ptrace' of git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc: (39 commits)
  ptrace: do_wait(traced_leader_killed_by_mt_exec) can block forever
  ptrace: fix ptrace_signal() && STOP_DEQUEUED interaction
  connector: add an event for monitoring process tracers
  ptrace: dont send SIGSTOP on auto-attach if PT_SEIZED
  ptrace: mv send-SIGSTOP from do_fork() to ptrace_init_task()
  ptrace_init_task: initialize child->jobctl explicitly
  has_stopped_jobs: s/task_is_stopped/SIGNAL_STOP_STOPPED/
  ptrace: make former thread ID available via PTRACE_GETEVENTMSG after PTRACE_EVENT_EXEC stop
  ptrace: wait_consider_task: s/same_thread_group/ptrace_reparented/
  ptrace: kill real_parent_is_ptracer() in in favor of ptrace_reparented()
  ptrace: ptrace_reparented() should check same_thread_group()
  redefine thread_group_leader() as exit_signal >= 0
  do not change dead_task->exit_signal
  kill task_detached()
  reparent_leader: check EXIT_DEAD instead of task_detached()
  make do_notify_parent() __must_check, update the callers
  __ptrace_detach: avoid task_detached(), check do_notify_parent()
  kill tracehook_notify_death()
  make do_notify_parent() return bool
  ptrace: s/tracehook_tracer_task()/ptrace_parent()/
  ...
2011-07-22 15:06:50 -07:00
Linus Torvalds acb41c0f92 Merge branch 'of-pci' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'of-pci' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  pci/of: Consolidate pci_bus_to_OF_node()
  pci/of: Consolidate pci_device_to_OF_node()
  x86/devicetree: Use generic PCI <-> OF matching
  microblaze/pci: Move the remains of pci_32.c to pci-common.c
  microblaze/pci: Remove powermac originated cruft
  pci/of: Match PCI devices to OF nodes dynamically
2011-07-22 14:54:02 -07:00
Linus Torvalds 7235dd74a4 Merge branch 'spi/next' of git://git.secretlab.ca/git/linux-2.6
* 'spi/next' of git://git.secretlab.ca/git/linux-2.6: (34 commits)
  spi/imx: add device tree probe support
  spi/imx: copy gpio number passed by platform data into driver private data
  spi/imx: use soc name in spi device type naming scheme
  spi/imx: merge type SPI_IMX_VER_0_7 into SPI_IMX_VER_0_4
  spi/imx: do not use spi_imx2_3 to name SPI_IMX_VER_2_3 function and macro
  spi/imx: use mx21 to name SPI_IMX_VER_0_0 function and macro
  spi/imx: do not make copy of spi_imx_devtype_data
  spi/dw: Add spi number into spi irq desc
  spi/tegra: Use engineering names in DT compatible property
  spi/fsl_spi: fix CPM spi driver
  mach-s3c2410: remove unused spi-gpio.h file
  spi: remove obsolete spi-s3c24xx-gpio driver
  mach-gta2: remove unused spi-gpio.h include
  mach-qt2410: convert to spi_gpio
  mach-jive: convert to spi_gpio
  spi/pxa2xx: Remove unavailable ssp_type from documentation
  spi/bfin_spi: uninline fat queue funcs
  spi/bfin_spi: constify pin array
  spi/bfin_spi: use structs for accessing hardware regs
  spi/topcliff-pch: Support new device ML7223 IOH
  ...

Fix up trivial conflict in arch/arm/mach-ep93xx/Makefile
2011-07-22 14:52:44 -07:00
Linus Torvalds c7c8518498 Merge branch 'gpio/next' of git://git.secretlab.ca/git/linux-2.6
* 'gpio/next' of git://git.secretlab.ca/git/linux-2.6: (61 commits)
  gpio/mxc/mxs: fix build error introduced by the irq_gc_ack() renaming
  mcp23s08: add i2c support
  mcp23s08: isolate spi specific parts
  mcp23s08: get rid of setup/teardown callbacks
  gpio/tegra: dt: add binding for gpio polarity
  mcp23s08: remove unused work queue
  gpio/da9052: remove a redundant assignment for gpio->da9052
  gpio/mxc: add device tree probe support
  ARM: mxc: use ARCH_NR_GPIOS to define gpio number
  gpio/mxc: get rid of the uses of cpu_is_mx()
  gpio/mxc: add missing initialization of basic_mmio_gpio shadow variables
  gpio: Move mpc5200 gpio driver to drivers/gpio
  GPIO: DA9052 GPIO module v3
  gpio/tegra: Use engineering names in DT compatible property
  of/gpio: Add new method for getting gpios under different property names
  gpio/dt: Refine GPIO device tree binding
  gpio/ml-ioh: fix off-by-one for displaying variable i in dev_err
  gpio/pca953x: Deprecate meaningless device-tree bindings
  gpio/pca953x: Remove dynamic platform data pointer
  gpio/pca953x: Fix IRQ support.
  ...
2011-07-22 14:50:57 -07:00
Linus Torvalds 951cc93a74 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1287 commits)
  icmp: Fix regression in nexthop resolution during replies.
  net: Fix ppc64 BPF JIT dependencies.
  acenic: include NET_SKB_PAD headroom to incoming skbs
  ixgbe: convert to ndo_fix_features
  ixgbe: only enable WoL for magic packet by default
  ixgbe: remove ifdef check for non-existent define
  ixgbe: Pass staterr instead of re-reading status and error bits from descriptor
  ixgbe: Move interrupt related values out of ring and into q_vector
  ixgbe: add structure for containing RX/TX rings to q_vector
  ixgbe: inline the ixgbe_maybe_stop_tx function
  ixgbe: Update ATR to use recorded TX queues instead of CPU for routing
  igb: Fix for DH89xxCC near end loopback test
  e1000: always call e1000_check_for_link() on e1000_ce4100 MACs.
  netxen: add fw version compatibility check
  be2net: request native mode each time the card is reset
  ipv4: Constrain UFO fragment sizes to multiples of 8 bytes
  virtio_net: Fix panic in virtnet_remove
  ipv6: make fragment identifications less predictable
  ipv6: unshare inetpeers
  can: make function can_get_bittiming static
  ...
2011-07-22 14:43:13 -07:00
Richard Weinberger a03fc8c375 um: Make rwsem.S depend on CONFIG_RWSEM_XCHGADD_ALGORITHM
rwsem.S can only be used with CONFIG_RWSEM_XCHGADD_ALGORITHM.
This unbreaks the UML build on i386.

Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Richard Weinberger <richard@nod.at>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: user-mode-linux-devel@lists.sourceforge.net
Cc: JBeulich@novell.com
Link: http://lkml.kernel.org/r/201107222055.35341.richard@nod.at
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-07-22 23:06:30 +02:00
Linus Torvalds a7e1aabb28 Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
  lguest: Fix in/out emulation
  lguest: Fix translation count about wikipedia's cpuid page
  lguest: Fix three simple typos in comments
  lguest: update comments
  lguest: Simplify device initialization.
  lguest: don't rewrite vmcall instructions
  lguest: remove remaining vmcall
  lguest: use a special 1:1 linear pagetable mode until first switch.
  lguest: Do not exit on non-fatal errors
2011-07-22 13:45:50 -07:00
Linus Torvalds 111ad119d1 Merge branch 'stable/drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
* 'stable/drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/pciback: Have 'passthrough' option instead of XEN_PCIDEV_BACKEND_PASS and XEN_PCIDEV_BACKEND_VPCI
  xen/pciback: Remove the DEBUG option.
  xen/pciback: Drop two backends, squash and cleanup some code.
  xen/pciback: Print out the MSI/MSI-X (PIRQ) values
  xen/pciback: Don't setup an fake IRQ handler for SR-IOV devices.
  xen: rename pciback module to xen-pciback.
  xen/pciback: Fine-grain the spinlocks and fix BUG: scheduling while atomic cases.
  xen/pciback: Allocate IRQ handler for device that is shared with guest.
  xen/pciback: Disable MSI/MSI-X when reseting a device
  xen/pciback: guest SR-IOV support for PV guest
  xen/pciback: Register the owner (domain) of the PCI device.
  xen/pciback: Cleanup the driver based on checkpatch warnings and errors.
  xen/pciback: xen pci backend driver.
  xen: tmem: self-ballooning and frontswap-selfshrinking
  xen: Add module alias to autoload backend drivers
  xen: Populate xenbus device attributes
  xen: Add __attribute__((format(printf... where appropriate
  xen: prepare tmem shim to handle frontswap
  xen: allow enable use of VGA console on dom0
2011-07-22 13:45:15 -07:00
Linus Torvalds 997271cf5e Merge branch 'stable/pci.cleanups.v1' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
* 'stable/pci.cleanups.v1' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/pci: Use 'acpi_gsi_to_irq' value unconditionally.
  xen/pci: Remove 'xen_allocate_pirq_gsi'.
  xen/pci: Retire unnecessary #ifdef CONFIG_ACPI
  xen/pci: Move the allocation of IRQs when there are no IOAPIC's to the end
  xen/pci: Squash pci_xen_initial_domain and xen_setup_pirqs together.
  xen/pci: Use the xen_register_pirq for HVM and initial domain users
  xen/pci: In xen_register_pirq bind the GSI to the IRQ after the hypercall.
  xen/pci: Provide #ifdef CONFIG_ACPI to easy code squashing.
  xen/pci: Update comments and fix empty spaces.
  xen/pci: Shuffle code around.
2011-07-22 13:44:53 -07:00
Linus Torvalds 896d01796d Merge branch 'stable/bug.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
* 'stable/bug.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen:pvhvm: Modpost section mismatch fix
2011-07-22 13:44:45 -07:00
Linus Torvalds 0df55ea55b Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (78 commits)
  mmc: MAINTAINERS: add myself as a tmio-mmc maintainer
  mmc: print debug messages for runtime PM actions
  mmc: fix runtime PM with -ENOSYS suspend case
  mmc: at91_mci: move register header from include/ to drivers/
  mmc: mxs-mmc: fix clock rate setting
  mmc: tmio: fix a deadlock
  mmc: tmio: fix a recently introduced bug in DMA code
  mmc: sh_mmcif: maximize power saving
  mmc: tmio: maximize power saving
  mmc: tmio: fix recursive spinlock, don't schedule with interrupts disabled
  mmc: Added quirks for Ricoh 1180:e823 lower base clock frequency
  mmc: omap_hsmmc: fix oops in omap_hsmmc_dma_cb()
  mmc: omap_hsmmc: refactor duplicated code
  mmc: omap_hsmmc: fix a few bugs when setting the clock divisor
  mmc: omap_hsmmc: introduce start_clock and re-use stop_clock
  mmc: omap_hsmmc: split duplicate code to calc_divisor() function
  mmc: omap_hsmmc: move hardcoded frequency constants to defines
  mmc: omap_hsmmc: correct debug report error status mnemonics
  mmc: block: fixed NULL pointer dereference
  mmc: documentation of mmc non-blocking request usage and design.
  ...
2011-07-22 13:44:18 -07:00
Jonas Bonn 616257669e OpenRISC: Miscellaneous
Adds README file, TODO list, and a couple of other pieces that didn't seem
to fit into any other patch.

Signed-off-by: Jonas Bonn <jonas@southpole.se>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-07-22 18:46:41 +02:00
Jonas Bonn 224cd129fd OpenRISC: Library routines
Signed-off-by: Jonas Bonn <jonas@southpole.se>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-07-22 18:46:40 +02:00
Jonas Bonn 58e0166a47 OpenRISC: Headers
Signed-off-by: Jonas Bonn <jonas@southpole.se>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-07-22 18:46:39 +02:00
Jonas Bonn 769a8a9622 OpenRISC: Traps
Signed-off-by: Jonas Bonn <jonas@southpole.se>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-07-22 18:46:38 +02:00
Jonas Bonn 5a2bbb8f64 OpenRISC: Module support
Signed-off-by: Jonas Bonn <jonas@southpole.se>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-07-22 18:46:37 +02:00
Jonas Bonn e480158cc8 OpenRISC: GPIO
Signed-off-by: Jonas Bonn <jonas@southpole.se>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-07-22 18:46:37 +02:00
Jonas Bonn 88ef7f3f13 OpenRISC: Scheduling/Process management
Signed-off-by: Jonas Bonn <jonas@southpole.se>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-07-22 18:46:36 +02:00
Jonas Bonn 2a7be1160a OpenRISC: Idle/Power management
Minimal functionality...

Signed-off-by: Jonas Bonn <jonas@southpole.se>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-07-22 18:46:35 +02:00
Jonas Bonn 09abb90107 OpenRISC: System calls
The OpenRISC Linux kernel conforms to the "generic" syscall interface which
contains only the reduced set of syscalls deemed necessary for new
architectures.  Unfortunately, the uClibc port for OpenRISC does not fully
support this reduced set; as such, an additional patch available out-of-tree
needs to be applied to the kernel in order to use the current uClibc.  This
is just a temporary measure until the libc port can be straightened out; it
is likely that OpenRISC will make the transition to glibc shortly where the
generic syscall interface is better supported.

Signed-off-by: Jonas Bonn <jonas@southpole.se>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-07-22 18:46:34 +02:00
Jonas Bonn 816ebaa8b6 OpenRISC: IRQ
This patch adds support for the OpenRISC PIC.

Signed-off-by: Jonas Bonn <jonas@southpole.se>
Cc: tglx@linutronix.de
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-07-22 18:46:33 +02:00
Jonas Bonn b731fbbd24 OpenRISC: Timekeeping
Implements support for the OpenRISC timer which is a 28 bit cycle counter
that can be read out of a special purpose register.  This counter is
used as a both a clock event and clocksource device.

Signed-off-by: Jonas Bonn <jonas@southpole.se>
Cc: tglx@linutronix.de
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-07-22 18:46:32 +02:00
Jonas Bonn a39af6f7b8 OpenRISC: DMA
Simple DMA implementation.  Allows for allocation of coherent memory
(simply uncached) for DMA operations.

Signed-off-by: Jonas Bonn <jonas@southpole.se>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-07-22 18:46:32 +02:00
Jonas Bonn e5ad95ce9b OpenRISC: PTrace
This patch implements minimal PTrace support.  The pt_regs structure is
not exported to userspace for OpenRISC; rather, the GETREGSET mechanism
is intended to be used and the registers, as such, exported in the core
dump format which is ABI stable.  This is in line with what is intended
for new architectures as of 2.6.34 and has the advantage of permitting
the layout of the registers on the kernel stack (as per pt_regs) to be
freely modified.

Signed-off-by: Jonas Bonn <jonas@southpole.se>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-07-22 18:46:31 +02:00
Jonas Bonn f8c4a270d9 OpenRISC: Build infrastructure
Signed-off-by: Jonas Bonn <jonas@southpole.se>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-07-22 18:46:30 +02:00
Jonas Bonn ac689eb7f9 OpenRISC: Signal handling
Signed-off-by: Jonas Bonn <jonas@southpole.se>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-07-22 18:46:29 +02:00
Jonas Bonn 61e85e3675 OpenRISC: Memory management
Signed-off-by: Jonas Bonn <jonas@southpole.se>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-07-22 18:46:28 +02:00
Jonas Bonn 4f246ba30e OpenRISC: Device tree
The OpenRISC architecture uses the device tree infrastructure for the
platform description.  This is currently limited to having a device tree
built into the kernel, but work is underway within the OpenRISC project
to define how this device tree blob should be passed into the kernel from
an external resource.

Patch contains a single example DTS file to go with the defconfig for
or1ksim.

Signed-off-by: Jonas Bonn <jonas@southpole.se>
Cc: devicetree-discuss@lists.ozlabs.org
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-07-22 18:46:28 +02:00
Jonas Bonn 9d02a4283e OpenRISC: Boot code
Architecture code and early setup routines for booting Linux.

Signed-off-by: Jonas Bonn <jonas@southpole.se>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-07-22 18:46:27 +02:00
Jonas Bonn a4e05276a1 asm-generic: move archictures to common delay.h
This patch moves the in-tree architectures that were using the 'generic'
delay.h over to using the header file in asm-generic.

This is not done using the generic-y mechanism as none of these arch's
have started using that mechanism yet.  This is a trivial change to make
later when the arch begins using generic-y.

Note the subtle change to the avr32 and SH architectures where the argument
to __const_udelay was previously using the rounded down constant value
instead of the rounded up value.

Signed-off-by: Jonas Bonn <jonas@southpole.se>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
2011-07-22 18:46:24 +02:00
Mikael Pettersson e7d59db91a ARM: 7004/1: fix traps.h compile warnings
Building kernel 3.0 for an n2100 (plat-iop) results in:

In file included from arch/arm/plat-iop/cp6.c:20:
/tmp/linux-3.0/arch/arm/include/asm/traps.h:12: warning: 'struct pt_regs' declared inside parameter list
/tmp/linux-3.0/arch/arm/include/asm/traps.h:12: warning: its scope is only this definition or declaration, which is probably not what you want
/tmp/linux-3.0/arch/arm/include/asm/traps.h:48: warning: 'struct pt_regs' declared inside parameter list
/tmp/linux-3.0/arch/arm/include/asm/traps.h:48: warning: 'struct task_struct' declared inside parameter list
arch/arm/plat-iop/cp6.c:45: warning: initialization from incompatible pointer type

Nothing here depends on the layout of pt_regs or task_struct, so this
can be fixed by adding forward struct declarations to asm/traps.h.

Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-22 17:19:02 +01:00
Narendra_K@Dell.com 9b373ed18f x86/PCI: Preserve existing pci=bfsort whitelist for Dell systems
Commit 6e8af08dfa enables pci=bfsort on
future Dell systems. But the identification string 'Dell System' matches
on already existing whitelist, which do not have SMBIOS type 0xB1,
causing pci=bfsort not being set on existing whitelist.

This patch fixes the regression by moving the type 0xB1 check beyond the
existing whitelist so that existing whitelist is walked before.

Signed-off-by: Shyam Iyer <shyam_iyer@dell.com>
Signed-off-by: Narendra K <narendra_k@dell.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-07-22 08:44:28 -07:00
tip-bot for Sergei Shtylyov a8c7ef3187 x86/PCI: quirks: Use pci_dev->revision
This code uses PCI_CLASS_REVISION instead of PCI_REVISION_ID, so
it wasn't converted by commit 44c10138fd ("PCI: Change all
drivers to use pci_device->revision") before being moved to arch/x86/...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Dave Jones <davej@redhat.com>
Link: http://lkml.kernel.org/r/201107111901.39281.sshtylyov@ru.mvista.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-07-22 08:41:39 -07:00
Ralf Baechle d5341942d7 PCI: Make the struct pci_dev * argument of pci_fixup_irqs const.
Aside of the usual motivation for constification,  this function has a
history of being abused a hook for interrupt and other fixups so I turned
this function const ages ago in the MIPS code but it should be done
treewide.

Due to function pointer passing in varous places a few other functions
had to be constified as well.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
To: Anton Vorontsov <avorontsov@mvista.com>
To: Chris Metcalf <cmetcalf@tilera.com>
To: Colin Cross <ccross@android.com>
Acked-by: "David S. Miller" <davem@davemloft.net>
To: Eric Miao <eric.y.miao@gmail.com>
To: Erik Gilling <konkers@android.com>
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
To: "H. Peter Anvin" <hpa@zytor.com>
To: Imre Kaloz <kaloz@openwrt.org>
To: Ingo Molnar <mingo@redhat.com>
To: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
To: Jesse Barnes <jbarnes@virtuousgeek.org>
To: Krzysztof Halasa <khc@pm.waw.pl>
To: Lennert Buytenhek <kernel@wantstofly.org>
To: Matt Turner <mattst88@gmail.com>
To: Nicolas Pitre <nico@fluxnic.net>
To: Olof Johansson <olof@lixom.net>
Acked-by: Paul Mundt <lethal@linux-sh.org>
To: Richard Henderson <rth@twiddle.net>
To: Russell King <linux@arm.linux.org.uk>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-alpha@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-pci@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: linux-tegra@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Cc: x86@kernel.org
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-07-22 08:26:06 -07:00
Jan Beulich db34a363b9 x86/PCI: config space accessor functions should not ignore the segment argument
Without this change, the majority of the raw PCI config space access
functions silently ignore a non-zero segment argument, which is
certainly wrong.

Apart from pci_direct_conf1, all other non-MMCFG access methods get
used only for non-extended accesses (i.e. assigned to raw_pci_ops
only). Consequently, with the way raw_pci_{read,write}() work, it would
be a coding error to call these functions with a non-zero segment (with
the current call flow this cannot happen afaict).

The access method 1 accessor, as it can be used for extended accesses
(on AMD systems) instead gets checks added for the passed in segment to
be zero. This would be the case when on such a system having multiple
PCI segments (don't know whether any exist in practice) MMCFG for some
reason is not usable, and method 1 gets selected for doing extended
accesses. Rather than accessing the wrong device's config space, the
function will now error out.

v2: Convert BUG_ON() to WARN_ON(), and extend description as per Ingo's
request.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-07-22 08:25:41 -07:00
Bjorn Helgaas 43d786ed4d x86/PCI: reduce severity of host bridge window conflict warnings
Host bridge windows are top-level resources, so if we find a host bridge
window conflict, it's probably with a hard-coded legacy reservation.
Moving host bridge windows is theoretically possible, but we don't support
it; we just ignore windows with conflicts, and it's not worth making this
a user-visible error.

Reported-and-tested-by: Jools Wills <jools@oxfordinspire.co.uk>
References: https://bugzilla.kernel.org/show_bug.cgi?id=38522
Reported-by: Das <dasfox@gmail.com>
References: https://bugzilla.kernel.org/show_bug.cgi?id=16497
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-07-22 08:25:39 -07:00
Shaohua Li 0aba496fc8 x86/PCI: select direct access mode for mmconfig option
Direct access is needed in mmconf mode too. There are two reasons:
1. we need it to access first 256 bytes. We have bug before that
   using mmconf to access pci config space hangs system (when
   resizing BARs), so we use type1 config for legacy config space.
2. when doing mmconfg bar checking, we need access ACPI _CRS,
   which might access PCI config space.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-07-22 08:25:36 -07:00
Thomas Gleixner ded7c1ee97 mips: Fix i8253 clockevent fallout
pit_clockevent wants to replaced in the argument of the callback
function as well.

Reported-by; Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-07-22 11:18:22 +02:00
Heechul Yun 4cde7e0dca ARM: 6998/2: kernel: use proper memory barriers for bitops
Improve scalability by avoiding costly and unnecessary L2 cache sync
in handling bitops.

Signed-off-by: Heechul Yun <hyun@nvidia.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-22 10:16:27 +01:00
Petr Štetiar 24daa15aab ARM: 6997/1: ep93xx: increase NR_BANKS to 16 for support of 128MB RAM
I've got hands on one ts-7300 board, which is equiped with 128MB RAM in two
64MB memory chips, so it's 16 banks/8MB each. Without this patch, the bootmem
init code complains about small NR_BANKS number and only lower 64MB is
accessible.

Cc: Ryan Mallon <ryan@bluewatersys.com>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Petr Štetiar <ynezz@true.cz>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-22 10:16:27 +01:00
Fabio Baltieri a63e23b932 powerpc/85xx: fix mpic configuration in CAMP mode
Change the string to check for CAMP mode boot on MPC85xx (eg. P2020) to match
the one in the corresponding dts files (p2020rdb_camp_core{0,1}.dts).

Without this fix the mpic is configured as in the SMP boot mode, which causes
the first core to report a protected source interrupt error for devices
of the other core and lock up.

Also add MPIC_SINGLE_DEST_CPU on both P2020 based architectures in CAMP
mode as suggested by Scott Wood. Thanks.

Cc: Scott Wood <scottwood@freescale.com>
Cc: Poonam Aggrwal <poonam.aggrwal@freescale.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Fabio Baltieri <fabio.baltieri@gmail.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-07-22 03:28:29 -05:00
David S. Miller 368940d0a8 net: Fix ppc64 BPF JIT dependencies.
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-21 23:26:13 -07:00
Adrian Knoth 8d431f4160 lguest: Fix translation count about wikipedia's cpuid page
The comment is outdated, wikipedia now has six translations of the cpuid
page.

Signed-off-by: Adrian Knoth <adi@drcomp.erfurt.thur.de>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-07-22 14:39:50 +09:30
Adrian Knoth 64be11583b lguest: Fix three simple typos in comments
This patch fixes three typos I've accidentally spotted.

Signed-off-by: Adrian Knoth <adi@drcomp.erfurt.thur.de>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (one was already fixed)
2011-07-22 14:39:50 +09:30
Rusty Russell 9f54288def lguest: update comments
Also removes a long-unused #define and an extraneous semicolon.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-07-22 14:39:50 +09:30
Rusty Russell 7e1941444f lguest: remove remaining vmcall
We switch back from using vmcall in 091ebf07a2
because it was unreliable under kvm, but I missed one (rarely-used) place.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-07-22 14:39:49 +09:30
Rusty Russell 5dea1c88ed lguest: use a special 1:1 linear pagetable mode until first switch.
The Host used to create some page tables for the Guest to use at the
top of Guest memory; it would then tell the Guest where this was.  In
particular, it created linear mappings for 0 and 0xC0000000 addresses
because lguest used to switch to its real page tables quite late in
boot.

However, since d50d8fe19 Linux initialized boot page tables in
head_32.S even before the "are we lguest?" boot jump.  So, now we can
simplify things: the Host pagetable code assumes 1:1 linear mapping
until it first calls the LHCALL_NEW_PGTABLE hypercall, which we now do
before we reach C code.

This also means that the Host doesn't need to know anything about the
Guest's PAGE_OFFSET.  (Non-Linux guests might not even have such a
thing).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-07-22 14:39:48 +09:30
Benjamin Herrenschmidt 50d2a4223b powerpc: Copy back TIF flags on return from softirq stack
We already did it for hard IRQs but it looks like we forgot
to do it for softirqs. Without this, we would lose flags
such as TIF_NEED_RESCHED set using current_thread_info()
by something running of a softirq.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-07-22 13:38:58 +10:00
Kumar Gala 5adfd346e4 powerpc/64: Make server perfmon only built on ppc64 server devices
The 64-bit Book-E parts (to date) dont utilize the 'server' class
perfmon.  So building or depending on it makes no sense (and does break
FSL Book-E 64-bit support).  Move the selection of PPC_HAVE_PMU_SUPPORT
to be based on PPC_BOOK3S_64.

Based on a patch from Scott Wood.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-07-22 13:34:30 +10:00
Benjamin Herrenschmidt 4b575f3e8a Merge remote-tracking branch 'jwb/next' into next 2011-07-22 13:16:41 +10:00
Linus Torvalds 1f922d0770 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb:
  sparc,kgdbts: fix compile regression with kgdb test suite
2011-07-21 17:20:57 -07:00
Jason Wessel 33d8881af5 sparc,kgdbts: fix compile regression with kgdb test suite
Commit 63ab25ebbc (kgdbts: unify/generalize gdb breakpoint adjustment)
introduced a compile regression on sparc.

kgdbts.c: In function 'check_and_rewind_pc':
kgdbts.c:307: error: implicit declaration of function 'instruction_pointer_set'

Simply add the correct macro definition for instruction pointer on the
Sparc architecture.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: David S. Miller <davem@davemloft.net>
2011-07-21 17:29:49 -05:00
Andy Lutomirski aafade242f x86-64, vdso: Do not allocate memory for the vDSO
We can map the vDSO straight from kernel data, saving a few page
allocations.  As an added bonus, the deleted code contained a memory
leak.

Signed-off-by: Andy Lutomirski <luto@mit.edu>
Link: http://lkml.kernel.org/r/2c4ed5c2c2e93603790229e0c3403ae506ccc0cb.1311277573.git.luto@mit.edu
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2011-07-21 13:41:53 -07:00
David S. Miller 033b1142f4 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	net/bluetooth/l2cap_core.c
2011-07-21 13:38:42 -07:00
H. Peter Anvin ae7bd11b47 clocksource: Change __ARCH_HAS_CLOCKSOURCE_DATA to a CONFIG option
The machinery for __ARCH_HAS_CLOCKSOURCE_DATA assumed a file in
asm-generic would be the default for architectures without their own
file in asm/, but that is not how it works.

Replace it with a Kconfig option instead.

Link: http://lkml.kernel.org/r/4E288AA6.7090804@zytor.com
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: Andy Lutomirski <luto@mit.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Tony Luck <tony.luck@intel.com>
2011-07-21 13:34:05 -07:00
Matt Evans 0ca87f05ba net: filter: BPF 'JIT' compiler for PPC64
An implementation of a code generator for BPF programs to speed up packet
filtering on PPC64, inspired by Eric Dumazet's x86-64 version.

Filter code is generated as an ABI-compliant function in module_alloc()'d mem
with stackframe & prologue/epilogue generated if required (simple filters don't
need anything more than an li/blr).  The filter's local variables, M[], live in
registers.  Supports all BPF opcodes, although "complicated" loads from negative
packet offsets (e.g. SKF_LL_OFF) are not yet supported.

There are a couple of further optimisations left for future work; many-pass
assembly with branch-reach reduction and a register allocator to push M[]
variables into volatile registers would improve the code quality further.

This currently supports big-endian 64-bit PowerPC only (but is fairly simple
to port to PPC32 or LE!).

Enabled in the same way as x86-64:

	echo 1 > /proc/sys/net/core/bpf_jit_enable

Or, enabled with extra debug output:

	echo 2 > /proc/sys/net/core/bpf_jit_enable

Signed-off-by: Matt Evans <matt@ozlabs.org>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-21 12:38:32 -07:00
H. Peter Anvin a536877e77 x86: Make Dell Latitude E6420 use reboot=pci
Yet another variant of the Dell Latitude series which requires
reboot=pci.

From the E5420 bug report by Daniel J Blueman:

> The E6420 is affected also (same platform, different casing and
> features), which provides an external confirmation of the issue; I can
> submit a patch for that later or include it if you prefer:
> http://linux.koolsolutions.com/2009/08/04/howto-fix-linux-hangfreeze-during-reboots-and-restarts/

Reported-by: Daniel J Blueman <daniel.blueman@gmail.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: <stable@kernel.org>
2011-07-21 11:47:17 -07:00
Daniel J Blueman b7798d28ec x86: Make Dell Latitude E5420 use reboot=pci
Rebooting on the Dell E5420 often hangs with the keyboard or ACPI
methods, but is reliable via the PCI method.

[ hpa: this was deferred because we believed for a long time that the
  recent reshuffling of the boot priorities in commit
  660e34cebf fixed this platform.
  Unfortunately that turned out to be incorrect. ]

Signed-off-by: Daniel J Blueman <daniel.blueman@gmail.com>
Link: http://lkml.kernel.org/r/1305248699-2347-1-git-send-email-daniel.blueman@gmail.com
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: <stable@kernel.org>
2011-07-21 11:45:49 -07:00
Robert Richter 1ac2e6ca44 x86, perf: Make copy_from_user_nmi() a library function
copy_from_user_nmi() is used in oprofile and perf. Moving it to other
library functions like copy_from_user(). As this is x86 code for 32
and 64 bits, create a new file usercopy.c for unified code.

Signed-off-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20110607172413.GJ20052@erda.amd.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-07-21 20:41:57 +02:00
Cyrill Gorcunov f53173e47d x86, perf: P4 PMU - Fix typos in comments and style cleanup
This patch:

 - fixes typos in comments and clarifies the text
 - renames obscure p4_event_alias::original and ::alter members to
   ::original and ::alternative as appropriate
 - drops parenthesis from the return of p4_get_alias_event()

No functional changes.

Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Link: http://lkml.kernel.org/r/20110721160625.GX7492@sun
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-07-21 20:41:54 +02:00
Russell King 6645cb61f3 ARM: Fix build errors caused by adding generic macros
Commit 66a625a (ARM: mm: proc-macros: Add generic proc/cache/tlb struct
definition macros) introduced build errors when PM_SLEEP is not enabled.
The per-CPU do_suspend/do_resume functions are defined via the
preprocessor to constant 0.  However, the macros which use these were
converted to assembly, resulting in undefined references to these
functions.  Fix that by moving the ! ifdef section into proc-macros.S
and deleting it from all effected proc-*.S files.

Acked-by: Dave Martin <dave.martin@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-21 17:49:54 +01:00
Ingo Molnar 994bf1c922 Merge branch 'linus' into sched/core
Merge reason: pick up the latest scheduler fixes.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-07-21 18:00:01 +02:00
Arnd Bergmann 1d9e5a2bda Merge branch 'msm/fixes' into next/fixes 2011-07-21 16:53:43 +02:00
Jeff Ohlstein 41ff445cdb ARM: msm: platsmp: determine number of CPU cores at boot time
Previously we just assumed there were CONFIG_NR_CPUS cpus present in
the system. Instead, figure out the number of cpus from the MIDR
register.

Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
[arnd: clarified patch title]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2011-07-21 16:43:03 +02:00
Jean-Christophe PLAGNIOL-VILLARD b0a68ec944 mmc: at91_mci: move register header from include/ to drivers/
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-07-21 10:35:08 -04:00
Arnd Bergmann 1e09939bad Merge branch 'next-samsung-devel' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/devel 2011-07-21 16:34:00 +02:00
Arnd Bergmann 5ddac6bc1c Merge branch 'next-samsung-board' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/board 2011-07-21 16:32:06 +02:00
Arnd Bergmann ab2a0e0d13 Merge branch 'next-samsung-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/cleanup 2011-07-21 16:31:22 +02:00
Russell King 78359cb86b ARM: CPU hotplug: ensure we migrate all IRQs off a downed CPU
Our selection of interrupts to consider for IRQ migration is sub-
standard.  We were potentially including per-CPU interrupts in our
migration strategy, but omitting chained interrupts.  This caused
some interrupts to remain on a downed CPU.

We were also trying to migrate interrupts which were not migratable,
resulting in an OOPS.

Instead, iterate over all interrupts, skipping per-CPU interrupts
or interrupts whose affinity does not include the downed CPU, and
attempt to set the affinity for every one else if their chip
implements irq_set_affinity().

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-21 15:14:21 +01:00
Russell King ca15af19ac ARM: CPU hotplug: pass in proper affinity mask on IRQ migration
Now that the GIC takes care of selecting a target interrupt from the
affinity mask, we don't need all this complexity in the core code
anymore.  Just detect when we need to break affinity.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-21 15:07:56 +01:00
Russell King 5dfc54e087 ARM: GIC: avoid routing interrupts to offline CPUs
The irq_set_affinity() method can be called with masks which include
offline CPUs.  This allows offline CPUs to have interrupts routed to
them by writing to /proc/irq/*/smp_affinity after hotplug has taken
a CPU offline.  Fix this by ensuring that we select a target CPU
present in both the required affinity and the online CPU mask.

Ensure that we return IRQ_SET_MASK_OK (which happens to be 0) on
success to ensure generic code copies the new mask into the irq_data
structure.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-21 15:04:17 +01:00
Russell King 2ef75701d1 ARM: CPU hotplug: fix abuse of irqdesc->node
irqdesc's node member is supposed to mark the numa node number for the
interrupt.  Our use of it is non-standard.  Remove this, replacing the
functionality with a test of the affinity mask.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-21 15:00:27 +01:00
Phil Carmody 497888cf69 treewide: fix potentially dangerous trailing ';' in #defined values/expressions
All these are instances of
  #define NAME value;
or
  #define NAME(params_opt) value;

These of course fail to build when used in contexts like
  if(foo $OP NAME)
  while(bar $OP NAME)
and may silently generate the wrong code in contexts such as
  foo = NAME + 1;    /* foo = value; + 1; */
  bar = NAME - 1;    /* bar = value; - 1; */
  baz = NAME & quux; /* baz = value; & quux; */

Reported on comp.lang.c,
Message-ID: <ab0d55fe-25e5-482b-811e-c475aa6065c3@c29g2000yqd.googlegroups.com>
Initial analysis of the dangers provided by Keith Thompson in that thread.

There are many more instances of more complicated macros having unnecessary
trailing semicolons, but this pile seems to be all of the cases of simple
values suffering from the problem. (Thus things that are likely to be found
in one of the contexts above, more complicated ones aren't.)

Signed-off-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-07-21 14:10:00 +02:00
Huang Ying 050438ed5a kexec, x86: Fix incorrect jump back address if not preserving context
In kexec jump support, jump back address passed to the kexeced
kernel via function calling ABI, that is, the function call
return address is the jump back entry.

Furthermore, jump back entry == 0 should be used to signal that
the jump back or preserve context is not enabled in the original
kernel.

But in the current implementation the stack position used for
function call return address is not cleared context
preservation is disabled. The patch fixes this bug.

Reported-and-tested-by: Yin Kangkai <kangkai.yin@intel.com>
Signed-off-by: Huang Ying <ying.huang@intel.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: <stable@kernel.org>
Link: http://lkml.kernel.org/r/1310607277-25029-1-git-send-email-ying.huang@intel.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-07-21 11:19:28 +02:00
Alan Cox 43605ef188 x86, config: Introduce an INTEL_MID configuration
We need to carve up the configuration between:

 - MID general
 - Moorestown specific
 - Medfield specific
 - Future devices

As a base point create an INTEL_MID configuration property. We
make the existing MRST configuration a sub-option. This means
that the rest of the kernel config can still use X86_MRST checks
without anything going backwards.

After this is merged future patches will tidy up which devices
are MID and which are X86_MRST, as well as add options for
Medfield.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Link: http://lkml.kernel.org/r/20110712164859.7642.84136.stgit@bob.linux.org.uk
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-07-21 10:35:14 +02:00
Padmavathi Venna e8de616e39 ARM: S5P64X0: External Interrupt Support
Add external interrupt support for S5P64X0.The external interrupt
group 0(0 to 15) is used for wake-up source in stop and sleep mode.
Add generic irq chip support

Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 17:29:29 +09:00
Marek Szyprowski 4c0f0a3ea1 ARM: EXYNOS4: Enable MFC on Samsung NURI
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 17:29:20 +09:00
Kamil Debski b14f04dbdc ARM: EXYNOS4: Enable MFC on universal_c210
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 17:29:14 +09:00
Kamil Debski 66eb1238de ARM: S5PV210: Enable MFC on Goni
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 17:29:08 +09:00
Kamil Debski 0f75a96bc0 ARM: S5P: Add support for MFC device
Add support for MFC device to plat-s5p, mach-exynos4, mach-s5pv210:
 - clock support
 - memory mapping and reserving
 - s5p_device_mfc platform device

Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 17:29:00 +09:00
Jingoo Han 35ce909ee6 ARM: EXYNOS4: Add support FIMD on SMDKC210
This patch adds support EXYNOS4 FIMD0 and LTE480WV LCD pannel
on Samsung SMDKC210 board.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Jonghun Han <jonghun.han@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 17:28:55 +09:00
Jonghun Han e61b170139 ARM: EXYNOS4: Add platform device and helper functions for FIMD
This patch adds platform device s5p_device_fimd0 for EXYNOS4 FIMD0.
EXYNOS4 has two FIMDs(FIMD0, FIMD1). FIMD1 will be added later.
Some definitions used to enable EXYNOS4 FIMD0 are added.

Signed-off-by: Jonghun Han <jonghun.han@samsung.com>
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 17:28:51 +09:00
Jonghun Han 1aee2add21 ARM: EXYNOS4: Add resource definition for FIMD
This patch adds resource definitions for EXYNOS4 FIMD.
IRQ and SFR definitions are added.

Signed-off-by: Jonghun Han <jonghun.han@samsung.com>
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 17:28:39 +09:00
Jingoo Han 268a7ef2f3 ARM: EXYNOS4: Change devname for FIMD clkdev
According to SoC name, EXYNOS4, this patch changes devname
for FIMD from 's5pv310-fb' to 'exynos4-fb'.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
[kgene.kim@samsung.com: removed to change wrong clock name]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 17:28:31 +09:00
Kukjin Kim 2c0b687100 Merge branch 'next-samsung-clkdev-fix' into next-samsung-devel 2011-07-21 17:28:23 +09:00
Sangbeom Kim 2d21237e38 ARM: SAMSUNG: Add IRQ_I2S0 definition
To handle i2s0 interrupt and To fix compilation error
adds IRQ_I2S0 for exynos4, s3c64xx, s5p64x0

Signed-off-by: Sangbeom Kim <sbkim73@samsung.com>
[kgene.kim@samsung.com: Fixed build failure due to inclusion]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 17:27:28 +09:00
Sergei Shtylyov 38175051f8 x86, quirks: Use pci_dev->revision
This code uses PCI_CLASS_REVISION instead of PCI_REVISION_ID, so
it wasn't converted by commit 44c10138fd ("PCI: Change all
drivers to use pci_device->revision") before being moved to arch/x86/...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Dave Jones <davej@redhat.com>
Link: http://lkml.kernel.org/r/201107111901.39281.sshtylyov@ru.mvista.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-07-21 10:26:00 +02:00
Greg Dietsche a6c23905ff x86, smpboot: Mark the names[] array in __inquire_remote_apic() as const
This array is read-only. Make it explicit by marking as const.

Signed-off-by: Greg Dietsche <Gregory.Dietsche@cuw.edu>
Link: http://lkml.kernel.org/r/1309482653-23648-1-git-send-email-Gregory.Dietsche@cuw.edu
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-07-21 10:04:51 +02:00
Jan Beulich ef68c8f87e x86: Serialize EFI time accesses on rtc_lock
The EFI specification requires that callers of the time related
runtime functions serialize with other CMOS accesses in the
kernel, as the EFI time functions may choose to also use the
legacy CMOS RTC.

Besides fixing a latent bug, this is a prerequisite to safely
enable the rtc-efi driver for x86, which ought to be preferred
over rtc-cmos on all EFI platforms.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Acked-by: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: <mjg@redhat.com>
Link: http://lkml.kernel.org/r/4E257E33020000780004E319@nat28.tlf.novell.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Matthew Garrett <mjg@redhat.com>
2011-07-21 09:21:00 +02:00
Jan Beulich ac619f4eba x86: Serialize SMP bootup CMOS accesses on rtc_lock
With CPU hotplug, there is a theoretical race between other CMOS
(namely RTC) accesses and those done in the SMP secondary
processor bringup path.

I am unware of the problem having been noticed by anyone in practice,
but it would very likely be rather spurious and very hard to reproduce.
So to be on the safe side, acquire rtc_lock around those accesses.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: John Stultz <john.stultz@linaro.org>
Link: http://lkml.kernel.org/r/4E257AE7020000780004E2FF@nat28.tlf.novell.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-07-21 09:20:59 +02:00
Jingoo Han 2f3ab04a47 ARM: EXYNOS4: Change devname for FIMD clkdev
According to SoC name, EXYNOS4, this patch changes devname
for FIMD from 's5pv310-fb' to 'exynos4-fb'.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
[kgene.kim@samsung.com: removed to change wrong clock name]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 16:12:59 +09:00
Jan Beulich a750036f35 x86: Fix write lock scalability 64-bit issue
With the write lock path simply subtracting RW_LOCK_BIAS there
is, on large systems, the theoretical possibility of overflowing
the 32-bit value that was used so far (namely if 128 or more
CPUs manage to do the subtraction, but don't get to do the
inverse addition in the failure path quickly enough).

A first measure is to modify RW_LOCK_BIAS itself - with the new
value chosen, it is good for up to 2048 CPUs each allowed to
nest over 2048 times on the read path without causing an issue.
Quite possibly it would even be sufficient to adjust the bias a
little further, assuming that allowing for significantly less
nesting would suffice.

However, as the original value chosen allowed for even more
nesting levels, to support more than 2048 CPUs (possible
currently only for 64-bit kernels) the lock itself gets widened
to 64 bits.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/4E258E0D020000780004E3F0@nat28.tlf.novell.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-07-21 09:03:36 +02:00
Jan Beulich a738669464 x86: Unify rwsem assembly implementation
Rather than having two functionally identical implementations
for 32- and 64-bit configurations, use the previously extended
assembly abstractions to fold the rwsem two implementations into
a shared one.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/4E258DF3020000780004E3ED@nat28.tlf.novell.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-07-21 09:03:32 +02:00
Jan Beulich 4625cd6379 x86: Unify rwlock assembly implementation
Rather than having two functionally identical implementations
for 32- and 64-bit configurations, extend the existing assembly
abstractions enough to fold the two rwlock implementations into
a shared one.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/4E258DD7020000780004E3EA@nat28.tlf.novell.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-07-21 09:03:31 +02:00
Sangbeom Kim 2839cc1e7e ARM: SAMSUNG: Add platform device for idma
Exynos4 and S5PC110(S5PV210) has Internal dma(idma) in AUDSS.
To support idma, register idma platform device.
and Exynos4 and S5PC110 has different IDMA address.
TO handle different IDMA address, register idma platform data

Signed-off-by: Sangbeom Kim <sbkim73@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 14:12:19 +09:00
MyungJoo Ham b93cb91bd3 ARM: EXYNOS4: Add more registers to be saved and restored for PM
We need more registers to be saved and restored for PM of EXYNOS4210.
Otherwise, with additional drivers running, suspend-to-RAM fails to
wake up properly. This patch adds registers omitted in the initial PM
patches.

Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 11:27:18 +09:00
MyungJoo Ham d40474c819 ARM: EXYNOS4: Add more register addresses of CMU
These registers are crucial for PM to work properly.

Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 11:21:56 +09:00
Josef Bacik 02c24a8218 fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers
Btrfs needs to be able to control how filemap_write_and_wait_range() is called
in fsync to make it less of a painful operation, so push down taking i_mutex and
the calling of filemap_write_and_wait() down into the ->fsync() handlers.  Some
file systems can drop taking the i_mutex altogether it seems, like ext3 and
ocfs2.  For correctness sake I just pushed everything down in all cases to make
sure that we keep the current behavior the same for everybody, and then each
individual fs maintainer can make up their mind about what to do from there.
Thanks,

Acked-by: Jan Kara <jack@suse.cz>
Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-07-20 20:47:59 -04:00
Al Viro c066b65abf arm: don't create useless copies to pass into debugfs_create_dir()
its first argument is const char * and it's really not modified...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-07-20 20:47:52 -04:00
Al Viro 12520c438f switch assorted clock drivers to debugfs_remove_recursive()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-07-20 20:47:51 -04:00
Linus Torvalds 919d25a710 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86. reboot: Make Dell Latitude E6320 use reboot=pci
  x86, doc only: Correct real-mode kernel header offset for init_size
  x86: Disable AMD_NUMA for 32bit for now
2011-07-20 15:33:59 -07:00
John Crispin 744120aadd MIPS: Lantiq: Add missing clk_enable and clk_disable functions.
Signed-of-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2465/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-20 23:12:12 +01:00
Florian Fainelli de88397287 MIPS: AR7: Fix trailing semicolon bug in clock.c
Signed-off-by: Florian Fainelli <florian@openwrt.org>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2489/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-20 23:12:12 +01:00
Jonas Gorski b29af676a2 MIPS: BCM63xx: Remove duplicate PERF_IRQSTAT_REG definition
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Cc: linux-mips@linux-mips.org
Acked-by: Florian Fainelli <florian@openwrt.org>
Patchwork: https://patchwork.linux-mips.org/patch/2461/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-20 23:12:12 +01:00
Jayachandran C 39263eeb44 MIPS: Netlogic: SMP fixes for XLR/XLS platform code.
Fix few issues in the Netlogic code:
- Use handle_percpu_irq to handle per-cpu interrupts
- Remove unused function nlm_common_ipi_handler()
- Call scheduler_ipi() on SMP_RESCHEDULE_YOURSELF
- Enable interrupts in nlm_smp_finish()

Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2460/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-20 23:12:11 +01:00
Thomas Gleixner 1544129da2 MIPS: SB1250: Restore dropped irq_mask function
Commit d6d5d5c4a (MIPS: Sibyte: Convert to new irq_chip functions)
removed the mask function which breaks irq_shutdown(). Restore it.

Reported-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2460/
Tested-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-20 23:12:11 +01:00
Ralf Baechle 56eccc36dd MIPS: MIPSsim: Fix uniprocessor build.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-20 23:12:11 +01:00
Ralf Baechle 4f55fd752f MIPS: ARC: Fix build of firmware library on uniprocessor.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-20 23:12:11 +01:00
Ralf Baechle bf45e58371 MIPS: XLR, XLS: Move makefile bits to were they belong.
This patch combines linux-mips.org patches
637d69600fb1773da56487271ec2a79c33d237ed [MIPS: Netlogic: Yank out crap.]
and 5e3c263b9658a4b1c6c5577793e9347efb44854e [MIPS: XLR, XLS: Add Kbuild
files for platform.]

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2415/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-20 23:12:11 +01:00
Ralf Baechle 852fe3105e MIPS: Malta: Fix crash in SMP kernel on non-CMP systems.
Since 6be63bbbda (lmo) rsp.
af3a1f6f48 (kernel.org) the Malta code does
no longer probe for presence of GCMP if CMP is not configured.  This means
that the variable gcmp_present well be left at its default value of -1
which normally is meant to indicate that GCMP has not yet been mmapped.
This non-zero value is now interpreted as GCMP being present resulting
in a write attempt to a GCMP register resulting in a crash.

Reported and a build fix on top of my fix by Rob Landley <rob@landley.net>.

Reported-by: Rob Landley <rob@landley.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/2413/
2011-07-20 23:12:10 +01:00
Ralf Baechle b12acf163f MIPS: Wire up sendmmsg and renumber setns syscall.
Renumbering was necessary because I had already wired up setns(2) in the
linux-mips.org tree in commit c3fce54644cabbb90700cc3acc040718a377f609
[MIPS: Wire up new sendmmsg syscall.] but the same syscall numbers were
used by 7b21fddd08 [ns: Wire up the setns
system call] resulting in a conflict.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-20 23:12:10 +01:00
Ralf Baechle 731f90fae9 MIPS: SMTC: Fix build.
Commit ee6114202e48dc282c6d04741e9c5d7171eb8bb8 (lmo) rsp.
1685f3b158 (kernel.org) ["MIPS: SMTC: Move
declaration of smtc_init_secondary to <asm/smtc.h>."] didn't quite do
that - it rather lost the declaration of smtc_init_secondary resulting in
a build error.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-20 23:12:10 +01:00
Ralf Baechle 34ed9506ae MIPS: Malta SMTC: Fix build.
Commit a561b02a2577aec51277ba39c82bd192a79c0267 (lmo) rsp.
7c8d948f16 (kernel.org) ["MIPS: i8259: Convert
to new irq_chip functions"] missed one location to modify resulting in
build breakage.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-20 23:12:10 +01:00
Ralf Baechle 1bed3b9c71 MIPS: GT64120: Remove useless inclusion of clocksource.h.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-20 23:12:10 +01:00
Ralf Baechle 84fe98ea68 MIPS: NILE4: Remove useless inclusion of GT64120 header.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-20 23:12:09 +01:00
Zhangfei Gao a5556f3cc7 ARM: mmp2: update mmp2_defconfig to support mmc
1. support brownstone
2. support mmc
3. support basic filesystem and language
4. remove dynamic_debug, since too many log during access sd

Signed-off-by: Zhangfei Gao <zhangfei.gao@marvell.com>
Acked-by: Philip Rakity <prakity@marvell.com>
Acked-by: Mark F. Brown <mark.brown314@gmail.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-07-20 17:20:52 -04:00
Zhangfei Gao bfed345edf mmc: sdhci-pxa: move platform data to include/linux/platform_data
As suggested by Arnd, move platform data to include/linux/platform_data
in order to improve build coverage for the driver.

Signed-off-by: Zhangfei Gao <zhangfei.gao@marvell.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-07-20 17:20:52 -04:00
Zhangfei Gao 6f984f3b26 mmc: update mmp2 mmc resources in arch/arm
Update MMP2 platform code to "sdhci-pxav3", following the driver rename.

Signed-off-by: Zhangfei Gao <zhangfei.gao@marvell.com>
Acked-by: Philip Rakity <prakity@marvell.com>
Acked-by: Mark F. Brown <mark.brown314@gmail.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-07-20 17:20:50 -04:00
Zhangfei Gao a702c8abb2 mmc: host: split up sdhci-pxa, create sdhci-pxav3.c
sdhci-pltfm driver for PXAV3 SoCs, such as MMP2.

Signed-off-by: Zhangfei Gao <zhangfei.gao@marvell.com>
Signed-off-by: Philip Rakity <prakity@marvell.com>
Acked-by: Philip Rakity <prakity@marvell.com>
Acked-by: Mark F. Brown <mark.brown314@gmail.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-07-20 17:20:49 -04:00
Lai Jiangshan f218a7ee7a ia64,rcu: Convert call_rcu(sn_irq_info_free) to kfree_rcu()
The rcu callback sn_irq_info_free() just calls a kfree(),
so we use kfree_rcu() instead of the call_rcu(sn_irq_info_free).

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Jes Sorensen <jes@sgi.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
2011-07-20 14:10:13 -07:00
Ajay Kumar 49965e6586 ARM: S3C64XX: Cleanup mach/regs-fb.h from mach-s3c64xx
Use plat/regs-fb-v4.h in machine files instead of mach/regs-fb.h.

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 02:11:39 +09:00
Ajay Kumar 7bf3ba6b33 ARM: S5PV210: Cleanup mach/regs-fb.h from mach-s5pv210
Use plat/regs-fb-v4.h in machine files instead of mach/regs-fb.h.

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 02:11:34 +09:00
Ajay Kumar 1c4f6d48fc ARM: S5PC100: Cleanup mach/regs-fb.h from mach-s5pc100
Use plat/regs-fb-v4.h in machine files instead of mach/regs-fb.h.

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 02:11:30 +09:00
Banajit Goswami 6a567c4185 ARM: S3C24XX: Use generic s3c_set_platdata for devices
Signed-off-by: Banajit Goswami <banajit.g@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 02:11:25 +09:00
Banajit Goswami 7569fc5463 ARM: S3C64XX: Use generic s3c_set_platdata for OneNAND
Signed-off-by: Banajit Goswami <banajit.g@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 02:11:21 +09:00
Banajit Goswami 17e86d3879 ARM: SAMSUNG: Use generic s3c_set_platdata for NAND
Signed-off-by: Banajit Goswami <banajit.g@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 02:11:16 +09:00
Banajit Goswami b19952ad9e ARM: SAMSUNG: Use generic s3c_set_platdata for USB OHCI
Signed-off-by: Banajit Goswami <banajit.g@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 02:11:11 +09:00
Banajit Goswami 2eac3ad87a ARM: SAMSUNG: Use generic s3c_set_platdata for HWMON
Signed-off-by: Banajit Goswami <banajit.g@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 02:11:06 +09:00
Banajit Goswami 6b5738c2d9 ARM: SAMSUNG: Use generic s3c_set_platdata for FB
Signed-off-by: Banajit Goswami <banajit.g@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 02:11:01 +09:00
Banajit Goswami 07985bc789 ARM: SAMSUNG: Use generic s3c_set_platdata for TS
Signed-off-by: Banajit Goswami <banajit.g@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 02:10:56 +09:00
Banajit Goswami 96d78686d4 ARM: S3C64XX: Add PWM backlight support on SMDK6410
This patch adds support for LCD backlight using PWM timer for
Samsung SMDK6410 board.

Signed-off-by: Banajit Goswami <banajit.g@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 02:10:52 +09:00
Banajit Goswami 543601f526 ARM: S5P64X0: Add PWM backlight support on SMDK6450
This patch adds support for LCD backlight using PWM timer for
Samsung SMDK6450 board.

Signed-off-by: Banajit Goswami <banajit.g@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 02:10:46 +09:00
Banajit Goswami 499d296957 ARM: S5P64X0: Add PWM backlight support on SMDK6440
This patch adds support for LCD backlight using PWM timer for
Samsung SMDK6440 board.

Signed-off-by: Banajit Goswami <banajit.g@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 02:10:40 +09:00
Banajit Goswami 1cad6766ef ARM: S5PC100: Add PWM backlight support on SMDKC100
This patch adds support for LCD backlight using PWM timer for
Samsung SMDKC100 board.

Signed-off-by: Banajit Goswami <banajit.g@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 02:10:35 +09:00
Banajit Goswami 84ca326c7c ARM: S5PV210: Add PWM backlight support on SMDKV210
This patch adds support for LCD backlight using PWM timer for
Samsung SMDKV210 board.

Signed-off-by: Banajit Goswami <banajit.g@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 02:10:31 +09:00
Banajit Goswami fef469f7c2 ARM: EXYNOS4: Add PWM backlight support on SMDKC210
This patch adds support for LCD backlight using PWM timer for
Samsung SMDKC210 board.

Signed-off-by: Banajit Goswami <banajit.g@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 02:10:26 +09:00
Banajit Goswami 8689de73a8 ARM: EXYNOS4: Add PWM backlight support on SMDKV310
This patch adds support for LCD backlight using PWM timer for
Samsung SMDKV310 board.

Signed-off-by: Banajit Goswami <banajit.g@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 02:10:21 +09:00
Banajit Goswami f00207b255 ARM: SAMSUNG: Create a common infrastructure for PWM backlight support
This patch creates a common structure for LCD backlight
using PWM timer to be used by various Samsung boards.

Signed-off-by: Banajit Goswami <banajit.g@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 02:10:16 +09:00
Chanwoo Choi 0665ccc4c3 clocksource: convert 32-bit down counting clocksource on S5PV210/S5P64X0
Convert the S5PV210/S5P64X0 32-bit down-counting clocksource to
the generic mmio clocksource infrastructure

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 02:10:10 +09:00
Naveen Krishna Chatradhi 65f5eaa27a ARM: SAMSUNG: Move duplicate code for SPDIF ops
Move the duplicated code for SPDIF ops from S5PV210 and S5PC100.
So, the same can be used in EXYNOS4.

Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 02:10:04 +09:00
Naveen Krishna Chatradhi 696f6fc1be ARM: SAMSUNG: Cleanup I2C code in plat-samsung
Removes the duplication of default info structure in
dev-i2c[0 ~ 7].c files

Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 02:09:59 +09:00
Naveen Krishna Chatradhi 2c2e2c27e6 ARM: SAMSUNG: Use generic set_plat_data function
Calls the generic s3c_set_platdata function instead.

Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 02:09:54 +09:00
Kukjin Kim cf2e9c7b48 Merge branch 'next-samsung-clkdev-fix' into next-samsung-cleanup 2011-07-21 02:09:46 +09:00
Mark Brown b5930b83c2 ARM: S3C64XX: Convert to using REGULATOR_SUPPLY() on SMDK6410
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-07-21 02:09:40 +09:00